feat: complete Phase 2 design system rollout
Applied max-w-6xl standard across all remaining pages:
**Internal Tools & Admin (6 files):**
- Teams.tsx, Squads.tsx, Network.tsx, Portal.tsx
- Admin.tsx, BotPanel.tsx, Arms.tsx
**Hub/Client Pages (6 files):**
- ClientHub.tsx, ClientProjects.tsx (all 3 instances)
- ClientDashboard.tsx, ClientSettings.tsx
- ClientContracts.tsx, ClientInvoices.tsx, ClientReports.tsx
**Dashboard Pages (5 files):**
- FoundationDashboard.tsx, GameForgeDashboard.tsx
- StaffDashboard.tsx, NexusDashboard.tsx, LabsDashboard.tsx
**Community & Creator Pages (6 files):**
- Directory.tsx, Projects.tsx
- CreatorDirectory.tsx, MentorProfile.tsx, EthosGuild.tsx
- FoundationDownloadCenter.tsx, OpportunitiesHub.tsx
**Result:** Zero instances of max-w-7xl remaining in client/pages
All pages now use consistent max-w-6xl width for optimal readability
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